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39 lines
1 KiB
C++
39 lines
1 KiB
C++
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#if !defined( INCLUDED_MODULEOBSERVERS_H )
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#define INCLUDED_MODULEOBSERVERS_H
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#include "debugging/debugging.h"
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#include <set>
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#include "moduleobserver.h"
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class ModuleObservers
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{
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typedef std::set<ModuleObserver*> Observers;
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Observers m_observers;
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public:
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~ModuleObservers(){
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ASSERT_MESSAGE( m_observers.empty(), "ModuleObservers::~ModuleObservers: observers still attached" );
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}
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void attach( ModuleObserver& observer ){
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ASSERT_MESSAGE( m_observers.find( &observer ) == m_observers.end(), "ModuleObservers::attach: cannot attach observer" );
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m_observers.insert( &observer );
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}
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void detach( ModuleObserver& observer ){
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ASSERT_MESSAGE( m_observers.find( &observer ) != m_observers.end(), "ModuleObservers::detach: cannot detach observer" );
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m_observers.erase( &observer );
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}
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void realise(){
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for ( Observers::iterator i = m_observers.begin(); i != m_observers.end(); ++i )
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{
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( *i )->realise();
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}
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}
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void unrealise(){
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for ( Observers::reverse_iterator i = m_observers.rbegin(); i != m_observers.rend(); ++i )
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{
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( *i )->unrealise();
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}
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}
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};
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#endif
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